MSE05-2-11A-R05 Poclain Motor | 450 Bar 750cc Radial Piston

Product Overview

The MSE05-2-11A-R05-0000-DFH0 is a dual-displacement radial piston hydraulic motor from Poclain Hydraulics’ MS/MSE05 series, featuring a full displacement of 750 cc/rev and a half displacement of 375 cc/rev with wheel flange mounting (10×Ø18 on Ø140). As an MSE-series (E-version) motor, it delivers a maximum working pressure of 400 bar. The MS/MSE05 series is the mid-frame offering in Poclain’s multi-purpose motor line, covering displacements from 260 to 750 cc/rev with up to 50 kW of power, 4,770 N·m maximum torque and 450 bar maximum pressure (MS version) / 400 bar (MSE version), with a multi-speed concept reaching up to 700 rpm.

The MS/MSE05 series employs a modular design concept allowing a single base motor to be configured with different displacement groups, flow-distribution modules, brake modules and output-end modules for wheel-drive or shaft-drive installation. Primary applications include construction equipment, material handling, agriculture, environment, mining, rail, marine and industry. The MSE05 series features 100% interchangeable interfaces with original Poclain motors and is widely deployed in road rollers, skid steer loaders, harvesters and mining equipment.

The model code breaks down as follows: MSE05 identifies the MS/MSE series 05 frame size (E-version, 400 bar maximum working pressure); 2 denotes dual displacement configuration (750/375 cc/rev); 11A is the flow-distribution/function module code; R05 is the shaft and mounting configuration code (wheel flange mounting); 0000 is the standard option combination; DFH0 denotes additional options including brake configuration and port orientation.

Every unit undergoes 100% simulated operating-condition bench testing prior to shipment. Mounting flange, shaft end and port dimensions match the original Poclain MSE05 series exactly, enabling true drop-in interchangeability with zero modification required.

Technical Specifications

MS05/MSE05 Series Frame Size Specifications:

• MS05-8: Full displacement 376 ml/r, half displacement 188 ml/r, max power 25 kW, theoretical torque at 10 MPa 562 N·m, rated torque 1,405 N·m, rated pressure 25 MPa, max pressure 40 MPa, rated speed 90 rpm, speed range 0–200 rpm

• MS05-0: Full displacement 468 ml/r, half displacement 234 ml/r, max power 25 kW, theoretical torque at 10 MPa 699 N·m, rated torque 1,749 N·m, rated pressure 25 MPa, max pressure 40 MPa, rated speed 90 rpm, speed range 0–200 rpm

• MS05-1: Full displacement 514 ml/r, half displacement 257 ml/r, max power 25 kW, theoretical torque at 10 MPa 768 N·m, rated torque 1,921 N·m, rated pressure 25 MPa, max pressure 35 MPa, rated speed 85 rpm, speed range 0–190 rpm

• MS05-2: Full displacement 560 ml/r, half displacement 280 ml/r, max power 25 kW, theoretical torque at 10 MPa 837 N·m, rated torque 2,092 N·m, rated pressure 25 MPa, max pressure 35 MPa, rated speed 80 rpm, speed range 0–180 rpm

• MSE05-2 (This Model): Full displacement 750 ml/r (45.7 cu.in/rev), half displacement 375 ml/r (22.9 cu.in/rev), max power 50 kW (67 HP), max torque 4,770 N·m (3,518 lb-ft), max pressure 400 bar (5,801 psi), max speed 700 rpm, input speed 220/240 rpm

MSE05-2-11A-R05-0000-DFH0 Additional Specifications:

• Model Code: MSE05-2-11A-R05-0000-DFH0

• Type: Radial piston LSHT hydraulic motor (internal curve cam ring design)

• Displacement: 750 cc/rev (45.7 cu.in/rev) full / 375 cc/rev (22.9 cu.in/rev) half

• Displacement Ratio: 2:1

• Rated Working Pressure: 25 MPa (250 bar)

• Max Working Pressure: 40 MPa (400 bar)

• Rated Torque: ~2,800 N·m (full displacement)

• Max Torque: 4,770 N·m (3,518 lb-ft)

• Max Power: 50 kW (67 HP)

• Input Speed: 220/240 rpm (dual displacement configuration)

• Speed Range: 0–250 rpm

• Valving Type: Dual displacement valving module

• Mounting Flange: Wheel flange, 10×Ø18 on Ø140

• Anti-Skid Option: TwinLock™ available

• Brake: Service brake and parking brake options

• Motor Type: Wheel motor / shaft motor (modular)

• Operating Temperature Range: -40°C to +115°C

• Weight: ~52 kg (115 lbs)

• Original Design: Poclain Hydraulics, France

Key Technical Advantages

1. Dual Displacement Design for Wide Operating Range

The MSE05-2-11A-R05 features a dual-displacement cam ring design with on-line switching between 750 cc/rev full displacement and 375 cc/rev half displacement for a 2:1 ratio. The full-displacement mode delivers up to 4,770 N·m maximum torque for heavy-duty startup and grade climbing; the half-displacement mode significantly increases speed capability for light-load cruising. A single motor covers the full spectrum from low-speed high-torque to high-speed low-torque operation.

2. Internal Curve Radial Piston Design for High Startup Torque and Smooth Low-Speed Operation

The MSE05-2 employs Poclain’s patented internal curve radial piston design, with multiple pistons distributed along the cam ring’s internal curve to deliver high torque at extremely low speeds. The motor operates smoothly across the entire 0–250 rpm speed range without stick-slip. High startup torque ensures reliable starting under load, making it ideal for wheel-drive and scraper conveyor drive applications.

3. Modular Architecture for Maximum Adaptability

The MS/MSE05 series employs Poclain’s modular design concept, allowing displacement group, flow-distribution module, brake module and output-end module to be reconfigured. The wheel flange mounting configuration (10×Ø18 on Ø140) supports wheel-drive mounting for wheel loaders, skid steer loaders, harvesters and mining equipment. Optional TwinLock™ integrated anti-skid provides differential locking via hydraulic control for improved traction on challenging terrain.

4. High-Precision Cam Ring and Long Service Life

The MSE05-2 cam ring is manufactured from high-hardness alloy steel with precision grinding to resist high-frequency contact fatigue from piston rollers. A hydrodynamic oil film forms between rollers and cam ring, significantly reducing wear rate and extending overhaul intervals. The modular design allows replacement of individual worn modules rather than the entire motor, substantially reducing total cost of ownership. The motor features low noise, high radial load capacity and high starting torque.

5. 100% Simulated Load Testing & Drop-In Interchangeability

Each MSE05-2-11A-R05 unit is bench-tested under simulated operating conditions prior to dispatch, covering pressure cycling, speed shifting and thermal variation. Mounting flange, shaft end and port dimensions match the original Poclain MSE05 series exactly, enabling direct replacement without pipework or interface modification.

Application Areas

The MS05/MSE05 series is widely deployed in heavy-duty travel and tool drives:

• Construction: road rollers, skid steer loaders, excavator travel drives, trenchers

• Agriculture: combine harvesters, header drives, cotton pickers

• Material Handling: forklifts, aerial work platforms, beam carriers

• Mining: subsurface loaders, coal mining machinery travel drives, heavy-duty handling cars

• Marine & Offshore: deck machinery, winch drives

• Industrial: shredders, industrial conveyors

Expert Maintenance Tips

1. Dual Displacement Valving Module Maintenance: The dual displacement valving module is controlled by pilot pressure. If shift response is sluggish or excessively harsh, inspect the pilot control spool for sticking and the flow-distribution shaft O-rings for aging. Shift operations should be performed at low speed or standstill to avoid impact loading on the distribution mechanism. Inspect pilot control pressure and valving module seal condition every 1,000 hours.

2. Wheel Flange Mounting Surface Inspection: The MSE05-2-11A-R05 features wheel flange mounting (10×Ø18 on Ø140). Periodically inspect the output flange plane and wheel hub mating surface for wear or deformation. Ensure flange mating surface parallelism deviation does not exceed 0.05 mm during installation, and tighten bolts evenly in a diagonal sequence to Poclain technical manual torque values. Mounting surface flatness requirement is 0.2 mm with Ra 12.5 μm surface roughness.

3. Oil Cleanliness and Temperature Control: Maintain system oil cleanliness at ISO 4406 18/16/13 or better. HV46 hydraulic oil is recommended. Operating oil temperature should be kept below 80°C; elevated temperatures accelerate seal degradation. Replace hydraulic oil and filter after the first 500 hours, then follow a 2,000-hour or annual replacement cycle. Case drain temperature is affected by pressure and speed and is always higher than circuit temperature—system temperature must not exceed 115°C at any point.

4. Drain Line Management and Housing Priming: The drain port must return to the reservoir independently—housing back pressure must not exceed 2 bar. The drain line end must remain submerged to prevent air ingestion. Fill the housing with clean hydraulic oil before first startup. After extended shutdown, fill the housing again before restarting.

5. Periodic Piston Group and Cam Ring Inspection: As a radial piston motor, the MSE05-2-11A-R05’s primary wear points are the piston rollers and cam ring contact surface. Inspect piston roller wear and cam ring working surface every 2,000 hours. Both displacement cam surfaces require inspection. Abnormal noise or efficiency loss requires immediate shutdown and service. Use Poclain original specification parts when replacing piston groups to ensure fit accuracy and assembly torque per technical manual requirements.

6. Modular Repair Strategy: The MS/MSE05 series modular design allows replacement of individual worn modules rather than the entire motor. Establish a modular spare parts inventory including flow-distribution module seals, piston groups and cam rings to minimize machine downtime. When replacing modules, follow Poclain official technical manual torque values and assembly sequences.